Poster bed frame



FIG. 1 is a perspective view of a poster bed frame, showing our new design;

FIG. 2 is a side elevational view thereof, both sides being similar;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is an enlarged cross-sectional view taken on 5.5 FIG. 4. "

The inside of the footboard is not part of the claimed design". 

The ornamental design for a poster bed frame, as shown and described. 